++ [ originally posted by Zlatan ] ++
OK, money, territory, oil, etc... actually, I'd say very few wars are because of pride and/or revenge.
But you do have a point.
I think that money, territory etc. are just fueling the wars. Most brutal conflicts in modern days- in Europe, Africa and the former Soviet Union are ethnic conflicts- when one nation literally hates the other. The time when wars were mainly ideological- World wars, Korea, Viet Nam, Afganistan (invaded by the Soviets) is gone.
But money increadibly fuel conflicts. The US has spent $75 billion in Iraq in 2003, and appropriated another $87 billion for 2004. Yesterday the Congress passed the budget of $2,7 trillion, with increased spending on "homeland security".
Whenever there is a war- it creates necessity for firearms, amunitions, clothes, food, petrol, all kinds of things. Somebody is making lots of money on all that and they certainly don't want these conflicts to stop for obvious reasons.